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* Copyright (c) 2003-2006, www.pdfbox.org
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of pdfbox; nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
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*/
package org.pdfbox.cos;
import java.io.IOException;
import java.io.OutputStream;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.NumberFormat;
import org.pdfbox.exceptions.COSVisitorException;
/**
* This class represents a floating point number in a PDF document.
*
* @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
* @version $Revision: 1.17 $
*/
public class COSFloat extends COSNumber
{
private float value;
/**
* Constructor.
*
* @param aFloat The primitive float object that this object wraps.
*/
public COSFloat( float aFloat )
{
value = aFloat;
}
/**
* Constructor.
*
* @param aFloat The primitive float object that this object wraps.
*
* @throws IOException If aFloat is not a float.
*/
public COSFloat( String aFloat ) throws IOException
{
try
{
value = Float.parseFloat( aFloat );
}
catch( NumberFormatException e )
{
throw new IOException( "Error expected floating point number actual='" +aFloat + "'" );
}
}
/**
* Set the value of the float object.
*
* @param floatValue The new float value.
*/
public void setValue( float floatValue )
{
value = floatValue;
}
/**
* The value of the float object that this one wraps.
*
* @return The value of this object.
*/
public float floatValue()
{
return value;
}
/**
* The value of the double object that this one wraps.
*
* @return The double of this object.
*/
public double doubleValue()
{
return value;
}
/**
* This will get the integer value of this object.
*
* @return The int value of this object,
*/
public long longValue()
{
return (long)value;
}
/**
* This will get the integer value of this object.
*
* @return The int value of this object,
*/
public int intValue()
{
return (int)value;
}
/**
* {@inheritDoc}
*/
public boolean equals( Object o )
{
return o instanceof COSFloat && Float.floatToIntBits(((COSFloat)o).value) == Float.floatToIntBits(value);
}
/**
* {@inheritDoc}
*/
public int hashCode()
{
return Float.floatToIntBits(value);
}
/**
* {@inheritDoc}
*/
public String toString()
{
return "COSFloat{" + value + "}";
}
/**
* visitor pattern double dispatch method.
*
* @param visitor The object to notify when visiting this object.
* @return any object, depending on the visitor implementation, or null
* @throws COSVisitorException If an error occurs while visiting this object.
*/
public Object accept(ICOSVisitor visitor) throws COSVisitorException
{
return visitor.visitFromFloat(this);
}
/**
* This will output this string as a PDF object.
*
* @param output The stream to write to.
* @throws IOException If there is an error writing to the stream.
*/
public void writePDF( OutputStream output ) throws IOException
{
DecimalFormat formatDecimal = (DecimalFormat)NumberFormat.getNumberInstance();
formatDecimal.setMaximumFractionDigits( 10 );
formatDecimal.setGroupingUsed( false );
DecimalFormatSymbols symbols = formatDecimal.getDecimalFormatSymbols();
symbols.setDecimalSeparator( '.' );
formatDecimal.setDecimalFormatSymbols( symbols );
output.write(formatDecimal.format( value ).getBytes());
}
}